Metal part coating scratching detection device

Abstract

The utility model discloses a device for detecting scratching of a coating of a metal part. The system comprises a power supply module, a lighting module, a plurality of expansion interfaces and an alarm, the power supply module comprises a 18650 lithium battery pack and a battery charging and discharging controller which are connected in parallel, stable power supply is ensured, and various interfaces are configured; the lighting module is composed of two LED lamps and provides good lighting. In circuit design, a switch, an overload fuse and an indicating lamp are connected between the positive electrode of the power supply module and the alarm, and the protection function is enhanced. During operation, the positive electrode and the negative electrode are connected through the conductive alligator clip and the metal cross-cut knife, and when the metal cross-cut knife cuts through a coating and makes contact with a metal base material, the alarm is triggered to give out a prompt, and it is ensured that effective scribing is completed at a time. The instrument solves the problems of complexity and high misjudgment rate of a traditional manual detection method, and is suitable for detection of coating adherence of various metal parts.

Description

Technical Field

[0001] The utility model relates to the technical field of metal parts coating scratch detection, and more specifically to a metal parts coating scratch detection device. Background Art

[0002] In the adhesion test of metal parts coating, the traditional method usually adopts manual 100-grid test. This method requires to draw 100 small grids on the coating surface, and then confirm the adhesion of coating quality. However, this method has some significant defects. In actual operation, the 100-grid test requires to use a special 100-grid cutter to draw 22 lines on the coating surface, form a 100-grid pattern, and then tear to confirm the adhesion. However, when the coating is scratched to the metal substrate, how to ensure that these 22 lines can be scratched from the coating surface to the metal substrate, meet the effective 100-grid requirements, and prevent misjudgment of the test results has always been a difficult problem.

[0003] In current production practice, the traditional method requires extremely high experience and skills of the operator. It is necessary to have rich operating experience and careful skills to ensure that the 22 lines drawn can meet the standards. In addition, it is necessary to use a digital microscope to repeatedly confirm to ensure that all the lines have penetrated the coating to the metal substrate before the next step of adhesion tearing confirmation can be carried out. However, this method has the following problems in actual operation:

[0004] 1. Inconvenient operation: For larger parts, it is very difficult to confirm using a digital microscope;

[0005] 2. Difficulty in identification: When the color of the coating is similar to that of the metal substrate, it is difficult for the digital microscope to accurately distinguish whether the metal substrate has been scratched, which can easily lead to misjudgment of the adhesion test results;

[0006] 3. Risk of multiple operations: If the first scribing does not completely penetrate the coating, a second scribing is required. This process can easily damage the edges of the scribing grid, leading to misjudgment of the coating quality.

[0007] 4. Excessive damage: Excessive scratching pressure may seriously damage the thickness of the metal sheet, affect the subsequent salt spray resistance test results, and lead to quality misjudgment. Utility Model Content

[0008] The utility model provides a metal part coating scratch detection device to solve the problem that it is difficult to confirm whether the metal part coating is scratched in the prior art.

[0009] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0010] A metal parts coating scratch detection device, comprising:

[0011] The detector comprises a power module, wherein the positive electrode of the power module is electrically connected to an alarm, and the alarm is electrically connected to the positive electrode output port; the negative electrode of the power module is electrically connected to the negative electrode output port;

[0012] A detection component includes a conductive alligator clip and a metal grating knife, wherein the conductive alligator clip is electrically connected to the positive output port, and the conductive alligator clip is clamped at the paint-breaking port of the metal-coated part to make the positive output port of the detector and the metal substrate of the metal-coated part conductive; the metal grating knife is electrically connected to the negative output port, and the metal grating knife is configured to form a closed circuit between the detection component and the detector when the blade cuts through the coating of the metal-coated part and contacts the metal substrate, thereby triggering the alarm to issue a prompt.

[0013] Furthermore, the power module includes a lithium battery pack and a battery charge and discharge controller, and the lithium battery pack and the battery charge and discharge controller are connected in parallel.

[0014] Furthermore, the lithium battery pack includes four 18650 lithium batteries connected in parallel.

[0015] Furthermore, the power module is electrically connected to a lighting module, a power display screen and a plurality of expansion interfaces.

[0016] Furthermore, the expansion interface includes at least one of a USB interface, a Lightning interface, a micro interface, and a Type-C interface.

[0017] Furthermore, the lighting module is an LED lamp, and two LED lamps are provided.

[0018] Furthermore, a first switch, a current overload fuse and a power-on indicator light are sequentially connected from the positive pole of the power module to the alarm.

[0019] Furthermore, the conductive alligator clip is electrically connected to the positive output port via a positive plug.

[0020] Furthermore, the metal knife is electrically connected to the negative electrode output port via a negative electrode plug.

[0021] Furthermore, the alarm includes at least one of a horn and a flashing light.

[0022] Compared with the prior art, the beneficial effects of the technical solution of the utility model are:

[0023] 1. One-time effective marking: Ensure that each of the 22 lines can be marked effectively at one time to avoid the adverse effects and quality misjudgment caused by secondary marking;

[0024] 2. No misjudgment of color distinction: not affected by the similar color of the coating and the metal substrate, avoiding misidentification;

[0025] 3. Protect the substrate: Avoid damaging the metal substrate by applying excessive pressure to ensure accurate subsequent test results;

[0026] 4. Improve efficiency: Listen to the prompt sound in real time during the marking process to confirm that the operation is effective, reduce unnecessary inspection procedures, and improve work efficiency;

[0027] In summary, the utility model provides a metal parts coating scratch detection device. The system is based on the principle that the metal substrate is conductive and the coating is non-conductive, and innovatively develops a fast inductive conductive prompt device. During use, when the conductive grid cutter scratches the coating and contacts the metal substrate, a circuit loop is formed and a prompt is triggered to remind the operator that the scratch requirement has been met, thereby avoiding the problem that it is difficult to confirm whether the coating is scratched with the naked eye. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0030] Figure 2 It is a schematic diagram of the circuit structure of the utility model;

[0031] Figure 3 It is a schematic diagram of the working principle of the utility model;

[0032] Description of the markings in the figure:

[0033] 1. Positive output port; 2. Alarm; 3. Negative output port; 4. Power-on indicator light; 5. Current overload fuse; 6. First switch; 7. USB interface; 8. LED light; 9. Lightning interface; 10. Micro interface; 11. Type-C interface; 12. Second switch; 13. Power display screen; 14. Conductive alligator clip; 15. Metal grating knife; 16. Metal coated parts; 17. Positive plug; 18. Negative plug; 19. Lithium battery pack; 20. Battery charge and discharge controller. DETAILED DESCRIPTION

[0034] In order to better understand the purpose, structure and function of the utility model, the technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0035] In the description of the present utility model, it should be understood that the terms "left side", "right side", "upper part", "lower part", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not indicate the importance of the components, and therefore cannot be understood as a limitation on the present utility model. The specific dimensions used in the embodiments are only for illustrating the technical solution, and do not limit the scope of protection of the present utility model. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0036] Unless otherwise clearly specified and limited, the terms "install", "set", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] Embodiment 1:

[0038] like Figure 1-3 As shown, the utility model provides a technical solution:

[0039] A metal parts coating scratch detection device, comprising:

[0040] The detector comprises a power module, the positive pole of the power module is electrically connected to an alarm 2, and the alarm 2 is electrically connected to a positive output port 1; the negative pole of the power module is electrically connected to a negative output port 3;

[0041] A detection component includes a conductive crocodile clip 14 and a metal grating knife 15, wherein the conductive crocodile clip 14 is electrically connected to the positive output port 1, and the conductive crocodile clip 14 is clamped at the paint-breaking port of the metal-coated part 16 to make the positive output port 1 of the detector and the metal substrate of the metal-coated part 16 conductive; the metal grating knife 15 is electrically connected to the negative output port 3, and the metal grating knife 15 is configured to form a closed circuit between the detection component and the detector when the blade cuts through the coating of the metal-coated part 16 and contacts the metal substrate, thereby triggering the alarm 2 to issue a prompt.

[0042] In this embodiment, when the conductive metal grid knife 15 cuts through the coating and contacts the metal substrate of the part, a circuit forms a loop to trigger a prompt speaker, reminding the operator that the cutting pressure applied to the grid knife has met the force requirement for cutting through the coating to reach the metal substrate, and the pressure is maintained to draw a line of corresponding length (the prompt sound needs to be sounded continuously during the marking process). The sensitivity of sound eliminates problems that cannot be guaranteed by the naked eye, so that each of the 22 lines can be marked out as an effective line at one time, ensuring that an effective grid pattern is formed before the coating adhesion is confirmed by tearing.

[0043] The beneficial effects of this embodiment are:

[0044] 1. Draw effective lines at one time to form effective grids, eliminating the quality misjudgment caused by the adverse effects of the second draw (judging OK quality as NG);

[0045] 2. It will not fail to find the problem of indirect scratching of the scribe line due to the similar color of the coating and the metal substrate, resulting in misjudgment of quality (judging NG quality as OK product);

[0046] 3. The thickness of the metal substrate sheet will not be damaged due to excessive scratching pressure, which will affect the salt spray resistance test results and lead to quality misjudgment (OK quality is judged as NG product);

[0047] 4. When using the metal parts coating scratch detection instrument to test the adhesion of metal parts coating, you can listen to the sound during the scribing process and mark out 100 effective grids at one time, eliminating unnecessary inspection process time and improving work efficiency.

[0048] Embodiment 2:

[0049] Based on Example 1, Figure 1-3 The power module includes a lithium battery pack 19 and a battery charge and discharge controller 20. The lithium battery pack 19 and the battery charge and discharge controller 20 are connected in parallel. This design ensures the stability and efficiency of the power module.

[0050] Furthermore, the lithium battery pack 19 includes four 18650 lithium batteries connected in parallel. This configuration provides a higher capacity and a stable current output, and is suitable for long-term operation.

[0051] Furthermore, the power module is electrically connected to a lighting module, a power display screen 13 and a plurality of expansion interfaces, thereby enhancing the versatility and user experience of the device.

[0052] Furthermore, the power module is electrically connected to a second switch 12, and the second switch 12 is a switch for controlling charging and discharging and the LED light.

[0053] Furthermore, the expansion interface includes at least one of a USB interface 7, a Lightning interface 9, a micro interface 10, and a Type-C interface 11, and users can charge and discharge through these interfaces.

[0054] Furthermore, the lighting module is an LED lamp 8, and two LED lamps 8 are provided, which provide a good working lighting environment and facilitate operation under various light conditions.

[0055] Embodiment 3:

[0056] Based on Example 1, Figure 1-3 A first switch 6, a current overload fuse 5 and a power-on indicator light 4 are sequentially connected from the positive pole of the power module to the alarm 2. This design ensures the safety and convenience of the equipment.

[0057] Furthermore, the conductive alligator clip 14 is electrically connected to the positive output port 1 through the positive plug 17; the metal knife 15 is electrically connected to the negative output port 3 through the negative plug 18, ensuring the reliable connection and stability of the circuit. The positive plug 17 and the negative plug 18 are male plugs, and the positive output port 1 and the negative output port 3 are female plugs.

[0058] Furthermore, the alarm 2 includes at least one of a speaker and a flashing light, and provides a variety of prompting methods to ensure that the operator can be reminded in time.

[0059] Furthermore, the conductive alligator clip 14 can be replaced with a conductive paint-breaking pliers.

[0060] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A metal parts coating scratch detection device, characterized in that: include: A detector, comprising a power module, wherein the positive pole of the power module is electrically connected to an alarm (2), and the alarm (2) is electrically connected to a positive output port (1); and the negative pole of the power module is electrically connected to a negative output port (3); A detection component, comprising a conductive alligator clip (14) and a metal grating knife (15), wherein the conductive alligator clip (14) is electrically connected to the positive output port (1), and the conductive alligator clip (14) is clamped at the paint-breaking opening of the metal coating part (16) to make the positive output port (1) of the detector and the metal substrate of the metal coating part (16) conductive; the metal grating knife (15) is electrically connected to the negative output port (3), and the metal grating knife (15) is configured to form a closed circuit between the detection component and the detector when the blade cuts through the coating of the metal coating part (16) and contacts the metal substrate, thereby triggering the alarm (2) to issue a prompt.

2. The metal parts coating scratch detection device according to claim 1, characterized in that: The power module comprises a lithium battery pack (19) and a battery charge and discharge controller (20), and the lithium battery pack (19) and the battery charge and discharge controller (20) are connected in parallel.

3. The metal parts coating scratch detection device according to claim 2, characterized in that: The lithium battery pack (19) comprises four 18650 lithium batteries connected in parallel.

4. The metal parts coating scratch detection device according to claim 1, characterized in that: The power module is electrically connected to a lighting module, a power display screen (13) and a plurality of expansion interfaces.

5. The metal parts coating scratch detection device according to claim 4, characterized in that: The expansion interface includes at least one of a USB interface (7), a Lightning interface (9), a micro interface (10), and a Type-C interface (11).

6. The metal parts coating scratch detection device according to claim 4, characterized in that: The lighting module is an LED lamp (8), and two LED lamps (8) are provided.

7. The metal parts coating scratch detection device according to claim 1, characterized in that: A first switch (6), a current overload fuse (5) and a power-on indicator light (4) are sequentially connected from the positive pole of the power module to the alarm (2).

8. The metal parts coating scratch detection device according to claim 1, characterized in that: The conductive alligator clip (14) is electrically connected to the positive electrode output port (1) via a positive electrode plug (17).

9. The metal parts coating scratch detection device according to claim 1, characterized in that: The metal grid knife (15) is electrically connected to the negative electrode output port (3) via a negative electrode plug (18).

10. The metal parts coating scratch detection device according to claim 1, characterized in that: The alarm (2) comprises at least one of a horn and a flashing light.

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